CVE-2016-7056: Canonical Ubuntu Linux

Medium severity, CVSS 5.5. EPSS: 0.6% chance of exploitation in the next 30 days.

A timing attack flaw was found in OpenSSL 1.0.1u and before that could allow a malicious user with local access to recover ECDSA P-256 private keys.

Affected products

• Canonical Ubuntu Linux: version 12.04 only; version 14.04 only
• Debian Debian Linux: version 8.0 only; version 9.0 only
• OpenSSL OpenSSL: up to and including 1.0.1u
• Red Hat Enterprise Linux: version 6.0 only; version 7.0 only

Published 2018-09-10. Last modified 2026-06-17.